Mamie Gummer isn't just following famed mom Meryl Streep's path in appearance and in Hollywood, she also debuted alongside her renowned mother in the 2007 film "Evening." As if one Streep per picture wasn't enough, in "Evening," both generations grace the silver screen, playing the same role at different ages. Gummer also made her debut on Broadway in May 2008, portraying Cécile Volanges in "Les Liaisons Dangereuses." (Getty Images)